Yup! She has very little memory of that incident. So maybe in future she might remember it all. I think she was there all the time and Razia when she might have found out was there she might have sent her to an orphanage.@ Cup of chai...it could be.So Zoya was there and saw the whole thing from Razia stabbing her mom to Rashid burning down the factory.Interesting!...So Zoyas memories are the key to the whole plot.